About the company
Since 1932, OSO Hotwater has been producing water heaters of the highest quality. From our factory in Hokksund, we supply Norway and the rest of the world with water tanks that provide stable hot water and low heat loss. Water heaters from OSO Hotwater are energy-saving, environmentally friendly, and long-lasting. This is beneficial for consumers, industry, and the environment.

Made in Norway certified
Made in Norway is the official origin label of Norway, designating products and services that are authentically Norwegian. To be certified, a company and its products or services must fulfil criteria pertaining to origin, responsibility and sustainability. It is a registered trademark administered by Innovation Norway, the official Norwegian trade promotion organisation.
Made in Norway certified products/services
Made in Norway certified
Hot water heater products




